I got 2 froggies tonight! They seem very healthy, good skin color etc. The other one in the cage with them had a teeny miscolord light green spot on his head that I did not see until I had chosen mine, which concerns me a bit, but the other frogs that I got look great. Don't know if it was color change from stress since he got all of them out or not. Should I keep an eye out for this on mine? They look fine and bright eyed and good. Is there anything preventative I can do? What are signs of them being ill? As I said, I have watched these same frogs in the store on and off for months and they have always looked healthy and eaten very well.